Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Reexamination Certificate
2005-06-07
2005-06-07
Cleveland, Michael (Department: 1762)
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
C427S438000
Reexamination Certificate
active
06902765
ABSTRACT:
A method for electroless metal plating of substrates, more specifically with electrically non-conductive surfaces, by which the substrates may be reliably metal plated at low cost under manufacturing conditions as well and by means of which it is possible to selectively coat the substrates to be treated only, and not the surfaces of the racks. The method involves the following steps: a. pickling the surfaces with a solution containing chromate ions; b. activating the pickled surfaces with a silver colloid containing stannous ions; c. treating the activated surfaces with an accelerating solution in order to remove tin compounds from the surfaces; and d. depositing, by means of an electroless nickel plating bath, a layer that substantially consists of nickel to the surfaces treated with the accelerating solution, the electroless nickel plating bath containing at least one reducing agent selected from the group comprising borane compounds.
REFERENCES:
patent: 3011920 (1961-12-01), Shipley et al.
patent: 4035227 (1977-07-01), Doty et al.
patent: 4204013 (1980-05-01), Arcilesi et al.
patent: 4244739 (1981-01-01), Cagnassi
patent: 4355083 (1982-10-01), Feldstein
patent: 4582729 (1986-04-01), Tsiamis et al.
patent: 5395651 (1995-03-01), Sodervall et al.
patent: 5935706 (1999-08-01), Hoover et al.
patent: 119 7720 (1960-06-01), None
patent: 1197720 (1960-06-01), None
patent: 292869 (1980-02-01), None
patent: 0616053 (1994-09-01), None
patent: 11241170 (1999-09-01), None
Designation B727-83, Standard Practice for Preparation of Plastic Materials for Electroplating, 1995, pp 451-455.
Metallmethansulfonate by D. Guhl and F. Honselmann in Metalloberflache, vol. 54 pp 34-37 (2000, no mo.).
Kunststoffmetallisierung, Manual for Theory and Practical Application, published by Eugen G. Leuze, Saulgau 1991, pp 46-47.
Brandes Mariola
Dyrbusch Brigitte
Middeke Herman
Atotech Deutschland GmbH
Cleveland Michael
Paul & Paul
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